CN212003709U

CN212003709U - Wear-resisting impeller subassembly of high life

Info

Publication number: CN212003709U
Application number: CN201922494737.4U
Authority: CN
Inventors: 张灵辉
Original assignee: Taizhou Huiteng Pump Industry Co ltd
Current assignee: Taizhou Huiteng Pump Industry Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-11-24
Anticipated expiration: 2029-12-31

Abstract

The utility model relates to a long-life wear-resistant impeller assembly, two adjacent impeller assemblies are superposed together, and each impeller assembly comprises an impeller and a guide vane; the impeller is arranged in the guide vane, a hub sleeve for mounting the main shaft is arranged in the center of the impeller, and the hub sleeve extends towards two end faces of the impeller and protrudes out of the two end faces of the impeller; the center of stator is provided with the connecting hole that is used for supplying the main shaft to pass, the embedded ceramic circle that is equipped with of connecting hole, it is equipped with ceramic gasket to press from both sides between axle sleeve lower extreme tip and the ceramic circle, be equipped with the gasket shaft hole that is used for supplying the main shaft installation among the ceramic gasket. The utility model discloses the effect that life is high has.

Description

Wear-resisting impeller subassembly of high life

Technical Field

The utility model belongs to the technical field of the technique of deep-well pump accessories and specifically relates to a wear-resisting impeller subassembly of high life is related to.

Background

The deep well pump is one kind of water pump, and its biggest characteristic is that the motor and the pump are made together, and it is a machine sinking into the well bore and lifting water, and is widely used in mine emergency, construction drainage, agricultural irrigation and drainage, industrial water circulation, even rescue and relief work and the deeper pumping and lifting water of ground water level, etc.

If current impeller subassembly includes impeller and stator, the center of impeller is equipped with the axle sleeve that is used for supplying the installation of deep-well pump main shaft, and the center of stator is provided with the connecting hole that supplies the main shaft to pass, and the connecting hole is embedded to be equipped with the rubber circle, and when impeller installed in the stator, the axle sleeve tip of impeller and the rubber circle end face contact of connecting hole.

The water in the well is pumped up after the motor works, the inner impeller is driven by the main shaft to rotate at a high speed, the water in the water rotates along with the impeller, the water flies away from the impeller to be ejected outwards under the action of centrifugal force, the speed of the ejected water is gradually reduced after the ejected water passes through the guide vanes above the impeller, the pressure of the ejected water is gradually increased, the ejected water flows upwards in the guide vanes, at the moment, a vacuum low-pressure area without air and water is formed at the center of the impeller due to the fact that the water is thrown to the periphery, the water is pumped up from the center of the impeller under the action of atmospheric pressure, and then the water flows out of the discharge pipe at the outlet of the pump.

However, when the water body contains silt particles, the silt particles flow upwards along with the water body from the guide vane, and a part of the silt particles enter between the end part of the impeller shaft sleeve and the rubber ring of the guide vane connecting hole, so that the rubber ring of the connecting hole is easily worn by the silt particles under the high-speed rotation of the impeller, the service life of the impeller assembly is influenced, and certain improvement is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wear-resisting impeller subassembly of high life has the characteristics that life is high.

The above technical object of the present invention can be achieved by the following technical solutions.

A long-life wear-resisting impeller assembly, two adjacent impeller assemblies are stacked together, the impeller assembly includes impeller and guide vane; the impeller is arranged in the guide vane, a hub sleeve for mounting the main shaft is arranged in the center of the impeller, and the hub sleeve extends towards two end faces of the impeller and protrudes out of the two end faces of the impeller; the center of stator is provided with the connecting hole that is used for supplying the main shaft to pass, the embedded ceramic circle that is equipped with of connecting hole, it is equipped with ceramic gasket to press from both sides between axle sleeve lower extreme tip and the ceramic circle, be equipped with the gasket shaft hole that is used for supplying the main shaft installation among the ceramic gasket.

Through above-mentioned technical scheme, the impeller passes through the axle sleeve and links to each other with the main shaft of deep-well pump to make the main shaft can drive the impeller rotatory, when impeller installation was in the guide vane, axle sleeve lower extreme tip passed through ceramic gasket and ceramic circle contact, axle sleeve upper end tip and ceramic circle contact, ceramic gasket passes through the gasket shaft hole and links to each other with the main shaft and follows the main shaft rotation, from this, when the impeller rotates at a high speed, ceramic gasket and impeller synchronous revolution, in order to replace axle sleeve lower extreme tip and ceramic circle contact through ceramic gasket.

On one hand, the ceramic gasket can reduce the gap between the end part of the lower end of the wheel axle sleeve and the ceramic ring, so that silt particles in the water body are prevented from entering between the ceramic gasket and the ceramic ring, and the abrasion of the ceramic ring or the ceramic gasket caused by the silt particles is avoided; on the other hand, adopt ceramic pad and the ceramic circle that ceramic material made, have the characteristics that hardness is high, wearability is good to effectively slow down silt particle to its wearing and tearing speed between them, consequently, through the setting of above-mentioned structure, the impeller subassembly of this application has the characteristics that life is high.

Preferably, the impeller comprises an upper blade plate, a lower blade plate and a plurality of blades, a water through hole is formed in the center of the lower blade plate, the blades are spirally arranged on the lower blade plate in an involute shape, a water through channel is formed between every two adjacent blades, one end of the water through channel is communicated with the water through hole, the other end of the water through channel is communicated with the outside, the upper blade plate covers the blades, and the hub is arranged in the center of the upper blade plate.

Through above-mentioned technical scheme, the impeller can regard its axle sleeve as supporting to rotate to guarantee the high-speed rotatory stability of impeller to a certain extent.

Preferably, the wheel axle sleeve extends towards two sides on the upper blade plate respectively, one end of the wheel axle sleeve protrudes out of the surface of the upper blade plate, and the other end of the wheel axle sleeve penetrates through the water through hole and protrudes out of the surface of the lower blade plate.

Through the technical scheme, the water through hole is formed in the center of the impeller, so that water can be sucked from the water through hole, enters the water through channel and is thrown out.

Preferably, the stator includes the casing, sets up the guide plate in the casing and sets up a plurality of water conservancy diversion pieces that are gradually type heliciform setting on the guide plate, the connecting hole runs through the center that sets up at the guide plate, is formed with the water conservancy diversion passageway between the adjacent water conservancy diversion piece, set up in every water conservancy diversion passageway department on the guide plate with the communicating water conservancy diversion mouth of casing inner chamber, it is equipped with the mounting panel that covers on a plurality of water conservancy diversion pieces to inlay on the casing, the center of mounting panel is provided with the centre bore.

Through above-mentioned technical scheme, the impeller is ordered about high-speed rotation by the main shaft, and water wherein rotates along with the impeller, and the water can fly away from the impeller and outwards jet out under the effect of centrifugal force, and the speed slows down gradually behind the stator of impeller top that the water that jets out, and pressure increases gradually, then upward flow in the stator to conveniently enter into the water conservancy diversion passageway from the water conservancy diversion mouth.

Preferably, the mounting plate is fitted with wear-resistant pieces around the central hole, the wear-resistant pieces being adapted to contact the lower end face of the impeller.

Through above-mentioned technical scheme, the wearing and tearing destruction of mounting panel can be caused to the silt granule in the water can be avoided in the setting of wear pad.

Preferably, the center of the lower end face of the impeller is provided with a support ring for abutting against the wear-resistant plate.

Through above-mentioned technical scheme, only the lock ring supports with wear pad and leans on, has ensured the rotational stability of impeller in the stator vane.

To sum up, the utility model discloses a beneficial technological effect does:

according to the wheel axle sleeve, due to the arrangement of the ceramic gasket, on one hand, the ceramic gasket can reduce the gap between the end part of the lower end of the wheel axle sleeve and the ceramic ring, so that silt particles in a water body are prevented from entering between the ceramic gasket and the ceramic ring, and the abrasion of the ceramic ring or the ceramic gasket caused by the silt particles is avoided; on the other hand, adopt ceramic pad and the ceramic circle that ceramic material made, have the characteristics that hardness is high, wearability is good to effectively slow down silt particle to its wearing and tearing speed between them, consequently, through the setting of above-mentioned structure, the impeller subassembly of this application has the characteristics that life is high.

Drawings

Fig. 1 is a schematic structural view of a high-speed deep well pump in the technical scheme of the utility model;

fig. 2 is a schematic structural diagram of a pump body in the technical scheme of the present invention;

fig. 3 is a schematic structural view of an impeller assembly in the technical solution of the present invention;

fig. 4 is a first schematic exploded view of an impeller assembly according to the present invention;

fig. 5 is a second schematic exploded view of an impeller assembly according to the present invention.

Reference numerals: 1. a pump body; 2. a motor; 3. a main shaft; 4. mounting a bracket; 5. a coupling; 6. a water inlet joint; 7. An impeller assembly; 71. an impeller; 711. a hub sleeve; 712. a wheel axle hole; 713. an upper leaf plate; 714. a blade; 715. a lower leaf plate; 716. a water through hole; 717. a support ring; 718. a water passage; 72. a guide vane; 721. a housing; 722. a baffle; 723. a flow deflector; 724. connecting holes; 725. a flow guide channel; 726. a flow guide port; 727. mounting a plate; 728. a central bore; 729. a wear resistant sheet; 730. an annular convex edge; 731. a ceramic ring; 732. a ceramic gasket; 8. a middle bracket; 9. an upper bracket; 10. and (5) discharging the water cap.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Combine fig. 1 and fig. 2 to show, the utility model provides a wear-resisting impeller subassembly of high life uses in high-speed deep-well pump, and high-speed deep-well pump includes the pump body 1, motor 2 and main shaft 3. The pump body 1 is the cylinder setting, is connected through installing support 4 between the motor 2 and the pump body 1 to make and form into the space of intaking between the motor 2 and the pump body 1, keep coaxial setting between the motor 2 and the pump body 1, main shaft 3 sets up in the pump body 1 and sets up along 1 axial direction of the pump body, and the output shaft of motor 2 passes through shaft coupling 5 and links to each other with main shaft 3, and from this, main shaft 3 can be at high-speed rotatory under the drive of motor 2.

The present embodiment is explained with reference to the pump body 1 being vertically disposed. The pump body 1 is at least provided with a water inlet joint 6, a plurality of impeller components 7, a middle bracket 8, a plurality of impeller components 7, an upper bracket 9 and a water outlet upper cap 10 from bottom to top in sequence. Wherein, the quantity of impeller subassembly 7 and well support 8 sets up according to the length of high-speed deep-well pump, sets up with three impeller subassembly 7 collocation one well support 8 in this embodiment.

Referring to fig. 2 and 3, a plurality of impeller assemblies 7 are arranged in the pump body 1, the impeller assemblies 7 are connected with the main shaft 3, the main shaft 3 is driven to rotate by the motor 2, the main shaft 3 of the impeller 71 is driven to rotate by the main shaft 3 to generate suction force, water enters from the water inlet joint 6 and is conveyed out from at least the water outlet upper cap 10 along the pump body 1 from below under the action of the impeller assemblies 7. A middle bracket 8 and an upper bracket 9 are arranged in the pump body 1, the middle bracket 8 and the upper bracket 9 are connected with the main shaft 3 through rubber bearings, and the middle bracket 8 and the upper bracket 9 are used for keeping the rotation stability of the main shaft 3.

In the technical solution of this embodiment, each impeller assembly 7 has the same structure, and two adjacent impeller assemblies 7 are stacked on each other, and this embodiment is explained by using one impeller assembly 7.

Specifically, as shown in fig. 4 and 5, the impeller assembly 7 includes an impeller 71 and a guide vane 72.

The guide vane 72 includes a housing 721, a guide plate 722 and a guide plate 723, the shape and size of the housing 721 are matched with the pump body 1, the housing 721 is arranged in a cylinder shape, when the housing 721 is installed in the pump body 1, the outer wall of the housing 721 can be tightly attached to the inner wall of the pump body 1, the housing 721 is arranged in a hollow manner, and the guide plate 722 is fixedly arranged in the housing 721 to seal the axial direction of the housing 721. The flow deflectors 723 are arranged on the upper surface of the flow deflector 722, a plurality of flow deflectors 723 are arranged, and the flow deflectors 723 are arranged on the flow deflector 722 in an involute spiral shape. The center of the guide plate 722 is provided with a connecting hole 724, the connecting hole 724 is arranged in a circular shape, the connecting hole 724 is used for the main shaft 3 to pass through, one end of the guide plate 723 is bordered by the hole edge of the connecting hole 724, the other end of the guide plate 723 is fixed with the inner wall of the shell 721, a guide channel 725 is formed between the adjacent guide plates 723, wherein each guide channel 725 on the guide plate 722 is provided with a guide opening 726, the guide openings 726 are positioned at the outer edge of the guide plate 722, and the guide channels 725 and the inner cavity of the shell 721 can be kept communicated with each other through the arrangement of the guide openings 726.

The end of the casing 721 is fixedly embedded with a mounting plate 727, and the mounting plate 727 covers the flow deflectors 723 to seal the top of the flow guide channel 725. The mounting plate 727 has a central hole 728 at the center thereof, the central hole 728 allowing the spindle 3 to pass therethrough, and the central hole 728 communicating with the fluid-guiding passage 725. The mounting plate 727 is embedded with wear-resistant pieces 729 around the central hole 728, the wear-resistant pieces 729 are ceramic wear-resistant pieces 729, the surfaces of the wear-resistant pieces 729 are flush with the surface of the mounting plate 727, and the outer edge of the mounting plate 727 is provided with an annular convex edge 730.

The impeller 71 is arranged in the inner cavity of the casing 721 of the guide vane 72, the center of the impeller 71 is provided with an impeller sleeve 711, the impeller sleeve 711 is provided with an axle hole 712 for installing the main axle 3, in the embodiment, the cross section of the main axle 3 is arranged in a regular hexagon, the size of the axle hole 712 is matched with the main axle 3, and the axle hole 712 adopts a hexagon socket axle hole 712. The boss 711 extends toward both end surfaces of the impeller 71 and projects from both end surfaces of the impeller 71.

Specifically, the impeller 71 includes an upper blade plate 713, blades 714 and a lower blade plate 715, a water through hole 716 is provided in the center of the lower blade plate 715, a support ring 717 is provided on the lower blade plate 715 around the edge of the water through hole 716, a plurality of blades 714 are provided, the plurality of blades 714 are spirally provided on the lower blade plate 715 in a gradually opened shape, a water through channel 718 is formed between adjacent blades 714, one end of the water through channel 718 is communicated with the water through hole 716, and the other end of the water through channel 718 is communicated with the outside. The upper blade plate 713 covers a plurality of blades 714, the hub 711 is arranged at the center of the upper blade plate 713, the hub 711 extends towards two sides of the upper blade plate 713, one end of the hub 711 protrudes out of the surface of the upper blade plate 713, and the other end of the hub 711 passes through the water through hole 716 and is higher than the surface of the support ring 717.

It is worth to say that a ceramic ring 731 is embedded into the connecting hole 724 in the center of the guide vane 72, a ceramic gasket 732 contacting with the ceramic ring 731 is arranged above the guide vane 72, a gasket shaft hole for mounting the spindle 3 is arranged in the ceramic gasket 732, the shape and size of the gasket shaft hole are matched with the spindle 3, and the gasket shaft hole is an inner hexagonal shaft hole.

When the adjacent impeller assemblies 7 are overlapped with each other, the impeller 71 is positioned in the inner cavity of the shell 721 of the guide vane 72, the support ring 717 of the impeller 71 is in contact with the wear-resistant sheet 729 of the mounting plate 727, the ceramic gasket 732 is clamped between the lower end of the hub 711 of the impeller 71 and the ceramic ring 731, the ceramic gasket 732 is in contact with the ceramic ring 731 instead of the lower end of the hub 711, wherein the upper end of the hub 711 of the impeller 71 is in contact with the ceramic ring 731.

Therefore, in the present application, the impeller 71 is driven by the main shaft 3 to rotate, the impeller 71 rotates at a high speed in the casing 721 of the guide vane 72, wherein the water body rotates along with the impeller 71, the water body flies away from the impeller 71 and is ejected outwards under the action of centrifugal force, the speed of the ejected water body is gradually reduced in the casing 721, the pressure of the ejected water body is gradually increased, and then the ejected water body flows upwards in the guide vane 72, at this time, a vacuum low-pressure area without air and water body is formed at the center of the impeller 71 due to the water body being thrown to the periphery, and the water body is sucked up by the impeller 71 under the action of atmospheric pressure.

Wherein, the water body is pumped and conveyed from bottom to top in the impeller assembly 7, so that silt contained in the water body is easy to accumulate on the mounting plate 727 of the guide vane 72. Therefore, the ceramic gasket 732 is used for replacing the lower end of the hub 711 to be in contact with the ceramic ring 731, and the characteristic that the ceramic gasket 732 and the ceramic ring 731 are made of ceramic and wear-resistant is utilized, so that the abrasion of the end of the hub 711 caused by the sediment in the water body can be effectively reduced, and the service life of the impeller 71 is prolonged.

And silt particle in the water is along with water vortex in the casing 721 inner chamber and throw towards casing 721 inner wall one side, this application passes through the setting of annular protruding edge 730 for silt particle can be gathered in annular protruding edge 730 department, avoid silt to gather on the one hand at mounting panel 727 surface, cause the wearing and tearing of impeller 71 and mounting panel 727, on the other hand passes through the setting of annular protruding edge 730, can block silt, strengthen the protection to casing 721 inner wall, reach the purpose of protection casing 721, in order to improve impeller assembly 7's life.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A long-life wear-resistant impeller assembly, two adjacent impeller assemblies (7) are stacked together, characterized in that the impeller assemblies (7) comprise impellers (71) and guide vanes (72);

the impeller (71) is arranged in the guide vane (72), a hub (711) for installing the main shaft (3) is arranged in the center of the impeller (71), and the hub (711) extends towards two end faces of the impeller (71) and protrudes out of the two end faces of the impeller (71);

the center of stator (72) is provided with connecting hole (724) that are used for supplying main shaft (3) to pass, connecting hole (724) are embedded to be equipped with ceramic circle (731), press from both sides between lower extreme tip of axle sleeve (711) and ceramic circle (731) and be equipped with ceramic gasket (732), be equipped with the gasket shaft hole that is used for supplying main shaft (3) to install in ceramic gasket (732), the upper end and the ceramic circle (731) contact of axle sleeve (711).

2. The impeller assembly with high durability and wear resistance as recited in claim 1, wherein the impeller (71) comprises an upper blade plate (713), a lower blade plate (715) and a plurality of blades (714), a water passing hole (716) is formed at the center of the lower blade plate (715), the plurality of blades (714) are spirally formed on the lower blade plate (715) in a gradually opened shape, a water passing passage (718) is formed between adjacent blades (714), one end of the water passing passage (718) communicates with the water passing hole (716), the other end of the water passing passage (718) communicates with the outside, the upper blade plate (713) covers the plurality of blades (714), and the hub (711) is disposed at the center of the upper blade plate (713).

3. The impeller assembly with long service life and wear resistance as recited in claim 2, wherein the impeller hub (711) extends to both sides on the upper blade plate (713), one end of the impeller hub (711) protrudes from the surface of the upper blade plate (713), and the other end of the impeller hub (711) passes through the water passage hole (716) and protrudes from the surface of the lower blade plate (715).

4. The impeller assembly with the long service life and the wear resistance as recited in claim 1, wherein the guide vane (72) comprises a casing (721), a guide plate (722) arranged in the casing (721), and a plurality of guide vanes (723) arranged on the guide plate (722) in an involute spiral shape, the connecting hole (724) penetrates through the center of the guide plate (722), a guide channel (725) is formed between adjacent guide vanes (723), a guide opening (726) communicated with the inner cavity of the casing (721) is formed at each guide channel (725) on the guide plate (722), a mounting plate (727) covering the plurality of guide vanes (723) is embedded on the casing (721), and a central hole (728) is formed in the center of the mounting plate (727).

5. A high life wear resistant impeller assembly according to claim 4, characterized in that the mounting plate (727) is embedded with wear plates (729) around the central hole (728), the wear plates (729) being adapted to be in contact with the lower end face of the impeller (71).

6. A high life wear resistant impeller assembly according to claim 5, characterized in that the center of the lower end face of the impeller (71) is provided with a support ring (717) for abutment with wear plates (729).